Convert BMP to PNG

BMP to PNG converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

BMP

BMP (Bitmap) is a simple, largely uncompressed raster image format native to Windows. BMP stores pixel data with optional Run-Length Encoding, making it trivial to read and write, but produces very large files. It remains useful as an intermediate, loss-free working format.

Developer: Microsoft
Initial release: 1985
Compression: Uncompressed
Color depth: up to 32-bit
Transparency: Yes
Animation: No

Best for

Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images

Pros

+Trivial to read and write
+Lossless and uncompressed
+Supports up to 32-bit color
+No decoding complexity

Cons

−Very large file sizes
−No compression by default
−Not suited for web
−No modern features like animation

PNG

PNG (Portable Network Graphics) is a lossless raster image format that supports alpha-channel transparency. PNG is the standard choice for web graphics, logos, and UI elements where sharp edges and transparency matter, and it produces no loss in quality across saves.

Developer: PNG Development Group (W3C)
Initial release: 1996
Compression: Lossless
Color depth: up to 16-bit per channel
Transparency: Yes
Animation: Yes

Best for

Web graphics and logos
UI elements with transparency
Screenshots and diagrams
Sharp-edged graphics with text
Lossless image preservation

Pros

+Lossless compression with no quality loss
+Alpha-channel transparency support
+Up to 16-bit per channel color
+Open W3C standard

Cons

−Larger files than JPG for photos
−Not ideal for complex photographs
−No EXIF metadata by default in some tools
−Animations limited to APNG

How to convert BMP to PNG

1
Select BMP files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose png — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your png file right away.

BMP vs PNG

Property	BMP	PNG
Compression	Uncompressed	Lossless
Transparency	Yes	Yes
Animation	No	Yes
Color depth	up to 32-bit	up to 16-bit per channel
Open format	Yes	Yes

When to use BMP vs PNG

BMP

Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images

PNG

Web graphics and logos
UI elements with transparency
Screenshots and diagrams
Sharp-edged graphics with text
Lossless image preservation

Use cases for BMP → PNG

Lossless intermediate image storage
Windows-native graphics workflows
Simple pixel-data interchange
Uncompressed image working copies
Legacy Windows application images
Web graphics and logos
UI elements with transparency
Screenshots and diagrams
Sharp-edged graphics with text
Lossless image preservation

Frequently Asked Questions

Is converting BMP to PNG free?

Yes. This BMP → PNG converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert BMP to PNG?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my BMP files uploaded to a server?

No. Files never leave your device. The entire BMP → PNG conversion runs locally in your browser, so your data stays private.

Can I convert multiple BMP files at once?

Yes — batch conversion is supported. Add as many BMP files as you like and convert them to PNG in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting BMP to PNG lose quality?

No. PNG is a lossless format (or used in a lossless mode here), so the original data from your BMP file is preserved bit-for-bit in the converted result.

Will transparency be preserved when converting BMP to PNG?

Yes. Both BMP and PNG support alpha-channel transparency, so transparent areas of your file are kept unchanged in the PNG output.

How will the file size change after converting BMP to PNG?

Both formats use comparable compression, so the PNG output will be similar in size to your BMP file — typically within 10–20% of each other.

Related Conversions

Specific converters

FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Convert BMP to PNG Quality Rating

4.8

25 reviews

How was your experience? You need to convert and download at least one file to provide feedback!